Home / 12,564.12-18,816.08-7,003.65

Finding the Fourth Proportional to 12,564.12, 18,816.08 and 7,003.65

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Solution

The fourth proportional to 12,564.12, 18,816.08 and 7,003.65 is: 10,488.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,564.12 : 18,816.08 = 7,003.65 : x
  2. Step 2: Convert to fraction form
    12,564.12/18,816.08 = 7,003.65/x
  3. Step 3: Cross multiply
    12,564.12x = 18,816.08 × 7,003.65
  4. Step 4: Simplify right side
    12,564.12x = 131,781,203.67
  5. Step 5: Solve for x
    x = 131,781,203.67/12,564.12
  6. Step 6: Final answer
    x = 10,488.69

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.